Electron excitation after plasmon decay in proton-aluminum collisions

Autores
Bocan, Gisela Anahí; Miraglia, Jorge Esteban
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
When a projectile travels inside a metal, it interacts with the electron gas, producing both binary and collective excitations ~plasmons!. Within the nearly-free-electron-gas scheme, Ro¨sler and co-workers showed that plasmons decay in first order and a conduction electron is emitted ~interband transition!. Working within the frame of atomic collisions, we develop a simple model to describe this decay. The first-order Born expansion is used to approximate the electron wave functions. The influence of the lattice potential on the excited electron is considered in the calculations in order to balance the momentum-conservation equation. It gives contributions associated with sites of the reciprocal lattice. The potential expansion coefficients are obtained following Animalu and co-workers @Philos. Mag. 9, 451 ~1964!#. First- and second-differential spectra ~in energy and angle! are analyzed discriminating contributions due to different lattice momenta. In all cases, contributions due to binary excitations of the valence electrons and inner-shell ionization are presented to establish a comparison.
Fil: Bocan, Gisela Anahí. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Miraglia, Jorge Esteban. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Materia
Plasmon
Decay
Interband
Collisions
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/22339
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Electron excitation after plasmon decay in proton-aluminum collisionsBocan, Gisela AnahíMiraglia, Jorge EstebanPlasmonDecayInterbandCollisionshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1When a projectile travels inside a metal, it interacts with the electron gas, producing both binary and collective excitations ~plasmons!. Within the nearly-free-electron-gas scheme, Ro¨sler and co-workers showed that plasmons decay in first order and a conduction electron is emitted ~interband transition!. Working within the frame of atomic collisions, we develop a simple model to describe this decay. The first-order Born expansion is used to approximate the electron wave functions. The influence of the lattice potential on the excited electron is considered in the calculations in order to balance the momentum-conservation equation. It gives contributions associated with sites of the reciprocal lattice. The potential expansion coefficients are obtained following Animalu and co-workers @Philos. Mag. 9, 451 ~1964!#. First- and second-differential spectra ~in energy and angle! are analyzed discriminating contributions due to different lattice momenta. In all cases, contributions due to binary excitations of the valence electrons and inner-shell ionization are presented to establish a comparison.Fil: Bocan, Gisela Anahí. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Miraglia, Jorge Esteban. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaAmerican Physical Society2003-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22339Bocan, Gisela Anahí; Miraglia, Jorge Esteban; Electron excitation after plasmon decay in proton-aluminum collisions; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 67; 3; 12-2003; 1-7; 0329021050-2947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevA.67.032902info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.67.032902info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:51:11Zoai:ri.conicet.gov.ar:11336/22339instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:51:11.404CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electron excitation after plasmon decay in proton-aluminum collisions
title Electron excitation after plasmon decay in proton-aluminum collisions
spellingShingle Electron excitation after plasmon decay in proton-aluminum collisions
Bocan, Gisela Anahí
Plasmon
Decay
Interband
Collisions
title_short Electron excitation after plasmon decay in proton-aluminum collisions
title_full Electron excitation after plasmon decay in proton-aluminum collisions
title_fullStr Electron excitation after plasmon decay in proton-aluminum collisions
title_full_unstemmed Electron excitation after plasmon decay in proton-aluminum collisions
title_sort Electron excitation after plasmon decay in proton-aluminum collisions
dc.creator.none.fl_str_mv Bocan, Gisela Anahí
Miraglia, Jorge Esteban
author Bocan, Gisela Anahí
author_facet Bocan, Gisela Anahí
Miraglia, Jorge Esteban
author_role author
author2 Miraglia, Jorge Esteban
author2_role author
dc.subject.none.fl_str_mv Plasmon
Decay
Interband
Collisions
topic Plasmon
Decay
Interband
Collisions
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv When a projectile travels inside a metal, it interacts with the electron gas, producing both binary and collective excitations ~plasmons!. Within the nearly-free-electron-gas scheme, Ro¨sler and co-workers showed that plasmons decay in first order and a conduction electron is emitted ~interband transition!. Working within the frame of atomic collisions, we develop a simple model to describe this decay. The first-order Born expansion is used to approximate the electron wave functions. The influence of the lattice potential on the excited electron is considered in the calculations in order to balance the momentum-conservation equation. It gives contributions associated with sites of the reciprocal lattice. The potential expansion coefficients are obtained following Animalu and co-workers @Philos. Mag. 9, 451 ~1964!#. First- and second-differential spectra ~in energy and angle! are analyzed discriminating contributions due to different lattice momenta. In all cases, contributions due to binary excitations of the valence electrons and inner-shell ionization are presented to establish a comparison.
Fil: Bocan, Gisela Anahí. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Miraglia, Jorge Esteban. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
description When a projectile travels inside a metal, it interacts with the electron gas, producing both binary and collective excitations ~plasmons!. Within the nearly-free-electron-gas scheme, Ro¨sler and co-workers showed that plasmons decay in first order and a conduction electron is emitted ~interband transition!. Working within the frame of atomic collisions, we develop a simple model to describe this decay. The first-order Born expansion is used to approximate the electron wave functions. The influence of the lattice potential on the excited electron is considered in the calculations in order to balance the momentum-conservation equation. It gives contributions associated with sites of the reciprocal lattice. The potential expansion coefficients are obtained following Animalu and co-workers @Philos. Mag. 9, 451 ~1964!#. First- and second-differential spectra ~in energy and angle! are analyzed discriminating contributions due to different lattice momenta. In all cases, contributions due to binary excitations of the valence electrons and inner-shell ionization are presented to establish a comparison.
publishDate 2003
dc.date.none.fl_str_mv 2003-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/22339
Bocan, Gisela Anahí; Miraglia, Jorge Esteban; Electron excitation after plasmon decay in proton-aluminum collisions; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 67; 3; 12-2003; 1-7; 032902
1050-2947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22339
identifier_str_mv Bocan, Gisela Anahí; Miraglia, Jorge Esteban; Electron excitation after plasmon decay in proton-aluminum collisions; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 67; 3; 12-2003; 1-7; 032902
1050-2947
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://link.aps.org/doi/10.1103/PhysRevA.67.032902
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.67.032902
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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